Specaled- I work at a dealership. From TechCONNECT:
Quote:
DESCRIPTION - 3.7/4.7L
CAUTION: Do not operate an engine without a thermostat, except for servicing or testing.
A pellet-type thermostat controls the operating temperature of the engine by controlling the amount of coolant flow to the radiator. On all engines the thermostat is closed below 195°F (90°C). Above this temperature, coolant is allowed to flow to the radiator. This provides quick engine warm up and overall temperature control (Thermostat Cross Section View 3.7L/4.7L).
The same thermostat is used for winter and summer seasons. An engine should not be operated without a thermostat, except for servicing or testing. Operating without a thermostat causes other problems. These are: longer engine warmup time, unreliable warmup performance, increased exhaust emissions and crankcase condensation. This condensation can result in sludge formation.
|
What's unsafe? I don't know. I get scared over 212, even though red coolant at 50/50 won't boil until 265- I don't know what temp the engine doesn't like. When I was towing the camper this summer we took a rest stop when the UG said 220. I just didn't like driving at temps that high.